package com.ny.demo527;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.Scanner;

public class DeleteDemo {
    private static  final  String URL="jdbc:mysql://localhost:3306/usersdb";
    private  static  final  String DB_username="root";
    private  static  final  String DB_password="123456";

    public static void main(String[] args) throws ClassNotFoundException, SQLException {
        Class.forName("com.mysql.cj.jdbc.Driver");
        Connection connection = DriverManager.getConnection(URL,DB_username,DB_password);
        String sql ="delete from userdb where id";
        PreparedStatement preparedStatement = connection.prepareStatement(sql);
        Scanner scanner=new Scanner(System.in);
        System.out.println("请输入ID");
        int id = scanner.nextInt();

        preparedStatement.setInt(1,id);

        int i=preparedStatement.executeUpdate();
        if (i>0){
            System.out.println("删除成功");
        }
        else {
            System.out.println("删除失败");
        }
    }
}
